Suzy Chiazzari is a pioneer in the field of Holistic Design, Colour Psychology and Colour Therapy. She is the author of many books on colour, design & natural living, founder of the Holistic Design Institute, Iris School of Colour Therapy & International Wheel of Colour Association. Suzy is a gifted holistic interior designer, experienced colour coach and counsellor, international lecturer and enthusiastic workshop leader. Her work has been featured on radio, television and in many publications and she is an affiliate of the Royal Institute of British Architects.

In her series of inspirational master classes, professional training and short courses Suzy shares with you her knowledge and experiences that changed her life, so that you too can enjoy the success and happiness offered by working with colour and design as a Healing Art. The affiliated distance learning colleges offer accredited courses for both professional and personal development and you can enjoy friendly support and personal advice from Suzy while you study.


World renowned professional training in growing and specialist fields of study.

Long established UKRLP registered and insured school based in the UK.

Beautiful accredited Diploma so you can practice anywhere in the world.

Friendly and supportive tutoring and personal attention by Suzy Chiazzari, our principal.

Flexible start time and study at your own speed.

Choice of study mode by email, CD or lessons in workbooks (last option in UK only)

Easy to follow and comprehensive course lessons with other learning materials.

Simple assessment system.

Free one year practitioner membership to HDI and IWOC to our graduates.

After graduation support and social media forums.

Holistic Design Courses

The Holistic Design institute is a leading UKRLP registered online college that provides specialist training in Interior design, Garden design and Therapeutic Art and Music.

View our Holistic Design courses

Colour Therapy Courses

At the Iris School of Colour Therapy we are passionate about colour. We believe that colour is a natural gift that we can use to enrich ourselves, and to help us through the stresses and challenges of life.

View our Colour Therapy courses

Popular Courses

Colour Aromatherapy Advanced Diploma

Colour Aromatherapy Advanced Diploma

A Diploma course combines Aromatherapy with Colour Therapy to produce gentle and subtle system of healing. Delivered in 12 Lesson by distance…

Holistic Interior Design Diploma

Holistic Interior Design Diploma

HOLISTIC INTERIOR DESIGN DIPLOMA - Natural Interior Design for Harmony and Health 16 Lessons by email, CD or workbooks (last option in the UK only)…

Colour Therapy for Interior Design

Colour Therapy for Interior Design

This Diploma course is specially designed for students and designers who wish to have a deeper understanding of colour and to specialise in colour…


I have been able to transform the small ugly courtyard garden at the back of my house into a wonderful place of peace and tranquility, which I can see out of my window and where I can sit and read or contemplate. My friends and family also love to spend time there too.

Japanese Garden Design Diploma